FMT- QA Installation and Operation Instructions - Page 9 of 16
Installation
Commissioning
Service
WARNING
A sensor Assy may only be connected and operated by trained and qualified staff,
which must have knowledge of and have verified the protection classes, directives
and regulations concerning electrical equipment designed for use in explosive
atmospheres.
The approval expires if the device is repaired or modified by a person other than the
manufacturer.
Do not install the device in a dust flow and avoid build-up of dust deposits.
Avoid static charging. Please only clean the device with a damp cloth.
If connection cables could be subject to mechanical damage, they must be
protected accordingly.
Connection cables must be shielded against strong electro-magnetic fields
Disconnect power before proceeding with any work on this equipment
Hazardous voltage can cause electrical shock and burns. Electrical plugs and sockets
shall be:
a) interlocked mechanically, so that they cannot be separated when the contacts
are energized and the contacts cannot be energized when the plug and socket are
separated, or
b) fixed together by means of special fasteners and the device marked with the
separation marking as required “WARNING – DO NOT SEPERATE WHEN
ENERGIZED”
Sensor: 3700 REED - 3710 MSR - 3720 Wiegand
Introduction to the 3700 Reed Assy
The 3700 Reed Assy can be used in FMG gas meters which are fitted with a
mechanical index. The device will provide two electrical low frequency pulse
outputs and one electrical magnetic tamper status output for use with
auxiliary electronic equipment.
Introduction to the 3710 MSR Assy
The 3710 MSR Assy can be used in FMG gas meters which are
fitted with a mechanical index. The device will provide two
electrical low frequency pulse outputs and one electrical
magnetic tamper status output for use with auxiliary
electronic equipment.
3710 in LC index 3710 in Std Index
Introduction to the 3720 Wiegand Assy
The 3720 Wiegand Assy can be used in FMG gas meters which are fitted
with a mechanical index. The device provides two low frequency solid
state pulse outputs and one magnetic tamper status output for use
with auxiliary electronic equipment.
Intended use in explosive atmospheres
The Assy fulfills the requirements of the
ATEX directive 94/9/EC
and can be used in explosive
atmospheres according the European normative documents EN60079-0 and EN60079-11 (Ex
i).
